Career woman Li Wei is busy with work and invites nanny Zhao Chunli to take care of her mother Wu Fengzhi. Unexpectedly, Wu Fengzhi accidentally discovered the adultery and property-stealing conspiracy between Zhao Chunli and her husband-in-law Chen Zhe, and was brutally tortured until she became mute. In order to protect the pregnant Li Wei, Wu Fengzhi endured the pain and chose to endure it. Li Wei gradually noticed something strange at home, but was deceived by the two many times. Li Hao, the younger brother who returned from China, keenly discovered the clues and secretly joined forces with his sister to collect evidence step by step. He vowed to uncover the disguise of Chen Zhe and Zhao Chunli, seek justice for his mother, and protect his family and property.
